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Monthly climate in Rehoboth Beach, Delaware, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Rehoboth Beach features a humid subtropical climate (Cfa).Temperatures typically range between 4 °C (39 °F) and 25 °C (77 °F) through the year, but rarely can drop to -11 °C (13 °F) or can rise to as high as 31 °C (88 °F).The average annual precipitation amounts to about 1321 mm (52.0 inches) and receives 121 rainy days on the 1 mm (0.04 inches) threshold annually.Rehoboth Beach enjoys an average of 3163 hours of sunshine throughout the year, and daylight varies from 9 hours 29 minutes to 14 hours 49 minutes per day.

Monthly average temperatures in Rehoboth Beach, Delaware, United States §

The warmest months in Rehoboth Beach are July, August and September, with daily mean temperatures ranging from 22 to 25 °C (73 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 4 to 7 °C (39 - 44 °F) throughout the day. On average each year, Rehoboth Beach experiences 48 days above 25 °C (77.0 °F) and 18 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Rehoboth Beach, Delaware, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 16°C
(62°F)		 14°C
(58°F)		 18°C
(65°F)		 22°C
(72°F)		 26°C
(79°F)		 28°C
(83°F)		 31°C
(88°F)		 30°C
(86°F)		 29°C
(84°F)		 28°C
(82°F)		 21°C
(71°F)		 17°C
(64°F)
Mean maximum 14°C
(57°F)		 13°C
(55°F)		 16°C
(61°F)		 19°C
(66°F)		 24°C
(75°F)		 27°C
(81°F)		 29°C
(85°F)		 29°C
(84°F)		 27°C
(82°F)		 25°C
(77°F)		 20°C
(68°F)		 16°C
(61°F)
Average high 6°C
(43°F)		 7°C
(45°F)		 9°C
(48°F)		 13°C
(56°F)		 18°C
(64°F)		 23°C
(73°F)		 26°C
(80°F)		 26°C
(79°F)		 24°C
(75°F)		 20°C
(68°F)		 13°C
(56°F)		 9°C
(49°F)
Daily mean 4°C
(39°F)		 5°C
(41°F)		 7°C
(44°F)		 11°C
(52°F)		 16°C
(61°F)		 21°C
(70°F)		 25°C
(77°F)		 25°C
(77°F)		 22°C
(73°F)		 18°C
(65°F)		 11°C
(52°F)		 7°C
(45°F)
Average low 2°C
(36°F)		 3°C
(37°F)		 5°C
(41°F)		 9°C
(49°F)		 14°C
(58°F)		 20°C
(68°F)		 24°C
(75°F)		 24°C
(75°F)		 21°C
(70°F)		 17°C
(62°F)		 9°C
(49°F)		 5°C
(42°F)
Mean minimum -6°C
(21°F)		 -4°C
(24°F)		 -2°C
(29°F)		 4°C
(39°F)		 9°C
(48°F)		 16°C
(61°F)		 21°C
(70°F)		 21°C
(69°F)		 17°C
(62°F)		 10°C
(51°F)		 2°C
(35°F)		 -1°C
(30°F)
Minimum -11°C
(13°F)		 -10°C
(14°F)		 -4°C
(25°F)		 2°C
(36°F)		 5°C
(41°F)		 13°C
(56°F)		 20°C
(69°F)		 19°C
(66°F)		 15°C
(59°F)		 8°C
(47°F)		 -1°C
(30°F)		 -6°C
(22°F)

Compare climate in Rehoboth Beach with other places

Compare temperature, precipitation, sunshine, UV index in Rehoboth Beach, Delaware, United States with other places around the world.

Monthly average precipitation in Rehoboth Beach, Delaware, United States §

Rehoboth Beach usually has the most precipitation in February, May and October, with an average of 11 rainy days and 135 mm (5.3 inches) of precipitation per month.The driest months in Rehoboth Beach are January, April and June. On average, 84 mm (3.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rehoboth Beach, Delaware, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 83 (3.3) 125 (4.9) 113 (4.5) 91 (3.6) 135 (5.3) 78 (3.1) 112 (4.4) 111 (4.4) 102 (4.0) 146 (5.8) 100 (3.9) 125 (4.9)
Average precipitation days (≥ 1 mm) 9 12 10 11 11 8 9 12 9 11 9 10

Monthly sunshine hours in Rehoboth Beach, Delaware, United States §

The sunniest months in Rehoboth Beach are June, July and August, when the sun shines an average of 11 hours 11 minutes a day.Least sunny months in Rehoboth Beach: January, February and December receive an average of 5 hours 46 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rehoboth Beach, Delaware, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 156 181 263 275 308 337 359 331 285 248 226 187
Mean daily daylight hours 9h 47m 10h 45m 11h 58m 13h 14m 14h 17m 14h 49m 14h 31m 13h 35m 12h 23m 11h 8m 10h 2m 9h 29m

Solar UV radiation in Rehoboth Beach, Delaware, United States §

Rehoboth Beach experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High category of sun exposure.January, February and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Rehoboth Beach UV Index data.

Average daily maximum UV levels by month for Rehoboth Beach, Delaware, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 3 5 7 9 10 10 10 10 8 7 5 3